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The height (in meters) of a shot cannonball follows a trajectory given by $h(t) = -4.9t^2 + 14t - 0.4$ at time  (in seconds). As an improper fraction, for how long is the cannonball above a height of 6 meters?

 Apr 15, 2021
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https://web2.0calc.com/questions/the-height-in-meters-of-a-shot-cannonball-follows

 Apr 15, 2021

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